Yes, you can download the iOS or Android Neato app to other smart devices and remotely control the robot. After you download the app to a second device, open it and sign into your Neato account, using your account email and password. NOTE: you must be using the SAME account email and password when you sign in from other devices.
Your robots are associated with your Neato account, not the smart device. NOTE: both your smart device and robot must be on the same network SSID to use the Manual Clean function on your Neato App.
After you sign in, you will see your robots on the My Robots screen – you can now control your robots from another smart device.